Thaum Lub Xya Hli 1, 2022, pib ua lag luam ntawm thawj ntu ntawm 300,000 tujmethyl methacrylate(ntawm no xa mus rau li methyl methacrylate) MMA phiaj xwm ntawm ionang kev txhim kho kev lag luam thiab cov khoom lag luam tshiab, yog suav nrog antanal aneverently tsim los ntawm Cas thiab Zhongyuan Dahua. Qhov no tseem yog thawj ntu kev ceeb toom MMA muab luam tawm hauv Suav teb. Yog tias cov khoom siv tau ua tiav kev tsim khoom, nws yuav ua tiav qhov kev sib tsoo hauv Suav teb lub ethylene Mma ntau lawm, uas muaj qhov cuam tshuam tseem ceeb rau MMA kev lag luam.
Chav tsev MMA thib ob ntawm cov txheej txheem kev ua kom muaj kev ua haujlwm hauv Suav teb yuav yog kev tshaj tawm hauv Shandong. Nws yog pib yuav tsum tau muab tso rau hauv kev tsim khoom nyob ib ncig 2024, thiab tam sim no nyob rau theem pib ua ntej theem. Yog tias chav ntsuas muaj tseeb, nws yuav dhau los ua cov txheej txheem MMArene hauv Suav teb, uas yog qhov tseem ceeb ntawm kev ua haujlwm ntawm MMA ntau lawm hauv Tuam Tshoj thiab kev txhim kho ntawm Tuam Tshoj txoj kev lag luam tshuaj lom neeg.
Raws li cov ntaub ntawv muaj feem cuam tshuam, muaj cov txheej txheem mmA txuas ntxiv hauv Suav teb: C4 txheej txheem, txhim kho ACH txheej txheem, Basf Ashylene txheej txheem thiab Lucite txheej txheem. Thoob ntiaj teb, cov txheej txheem ntau lawm muaj kev muaj teeb tsa. Nyob hauv Suav teb, C4 txoj cai lij choj thiab aj kev cai lij choj tau muaj lawm, thaum muaj kev cai lij choj yam ntxwv tsis tau muaj.
Vim li cas Tuam Tshoj Txoj Kev Lag Luam Tshuaj lom zem ntxiv nws cov ethylene mel? Puas yog tus nqi tsim ntawm MMA tsim los ntawm ethylene txoj kev sib tw?
Ua ntej, ethylene melm tau tsim ib qho dawb paug hauv Suav teb thiab muaj kev ua haujlwm siab ntau lawm. Raws li kev tshawb fawb, muaj tsuas yog ob pawg ntawm ethylene mma units nyob hauv lub ntiaj teb, uas muaj nyob hauv Tebchaws Europe thiab North America ntsig. Cov txheej txheem kev mob ntawm ethylene mma units yog qhov yooj yim. Tus nqi siv atomic siv tau ntau dua 64%, thiab cov txiaj ntsig yog siab dua lwm cov txheej txheem. BASF thiab Lucite tau nqa tawm cov kev tshawb fawb thiab kev txhim kho MMA cov khoom siv rau txheej txheem ethylene thaum ntxov, thiab ua tiav kev lag luam.
Lub MMA chav ntawm cov txheej txheem ethylene tsis koom nrog cov khoom siv acidic, uas tseem ua rau muaj kev ua haujlwm tsawg dua, thiab ntev tag nrho cov sijhawm ua haujlwm ntev thiab kev voj voog. Hauv qhov no, tus nqi them nyiaj ntawm kev pab MMA hauv cov txheej txheem kev ua haujlwm thaum lub sijhawm ua haujlwm qis dua li lwm cov txheej txheem.
Ethylene MMA cov khoom kuj muaj qhov tsis zoo. Ua ntej, txhawb nqa cov chaw rau cov nroj tsuag ethylene feem ntau yog tsim los ntawm cov nroj tsuag sib xyaw, yog li kev txhawb nqa kev txhim kho kev lag luam. Yog tias ethylene yuav, kev lag luam tsis zoo. Thib ob, muaj tsuas yog ob teev ntawm ethylene mma cov khoom hauv ntiaj teb. Tuam Tshoj cov haujlwm hauv kev tsim kho siv thev naus laus zis ntawm Suav Academy, thiab lwm yam kev lag luam tsis tuaj yeem yooj yim thiab ua kom tau txais thev naus laus zis. Thib peb, MMMA cov txheej txheem muaj cov txheej txheem txaus ntshai, cov tshuaj ntsuam ntev, cov neeg siv tshuaj ntau ntau, thiab tus nqi kho mob ntawm peb lub sijhawm siab.
Thib ob, tus nqi sib tw ntawm MMA chav tsev feem ntau yog los ntawm ethylene, thaum lub ethylene tsis muaj kev sib tw pom zoo. Raws li kev tshawb nrhiav, lub tsev MMA ntawm cov qauv ethylene roj, 0.387 tons ntawm cotthhanc, 1.0578 tons ntawm co co tshuaj tiv thaiv, thiab tsis muaj methacrylic acid khoom hauv cov txheej txheem ntau lawm Cov.
Raws li cov ntaub ntawv cuam tshuam tau tso los ntawm Shanghai Yunsheng Chemical Technology Co., Ltd., Methanol yog 2140 yuan / tuj, hluavtaws roj yog 1.95 yuan / Cubic cubic lo lus, thiab cov chlorine yog 600 yuan / tuj. Piv nrog tib lub sijhawm, cov nqi raws cai ntawm C4 txujci qauv thiab Ach txoj kev siab. Yog li ntawd, raws li cov kev ua lag luam tam sim no, lub ethylene MMA tsis pom tseeb kev sib deev.
Txawm li cas los xij, kev tsim cov MMA los ntawm cov qauv kev saib xyuas zoo li yuav phim nrog cov khoom siv ethylene. Ethylene yog cia li los ntawm naphtha tawg, thee synthesis, thiab lwm yam kev sib tw ntawm kev sib tw ntawm MMA kev sib tw yuav yog cuam tshuam los ntawm cov nqi ethylene raw khoom. Yog tias cov khoom siv ethylene yog tus kheej muab khoom siv, nws yuav tsum tau xam raws tus nqi ntawm kev sib tw ntawm kev sib tw ntawm ethylene MMA.
Thib peb, Ethylene MMA noj ntau ntawm cov chlorine, thiab cov nqi txhawb nqa kev sib raug zoo ntawm cov yaum kuj tseem muaj kev sib tw ntawm kev sib tw ntawm kev sib tw MMA. Raws li cov txheej txheem ntau lawm ntawm BASF thiab Lucite, ob qho ntawm cov txheej txheem no yuav tsum tau haus ntau npaum li cas ntawm chlorine. Yog tias chlorine muaj nws tus kheej kev txhawb nqa kev sib raug zoo, cov tshuaj chlorine tsis tas yuav tsum tau txiav txim siab, uas yuav txhim kho tus nqi sib tw ntawm kev sib tw MMA.
Tam sim no, Ethylene MMA tau nyiam qee qhov kev saib xyuas feem ntau vim yog kev sib tw ntawm cov nqi ntau lawm thiab cov kev ua haujlwm ua haujlwm me me ntawm chav ntsuas. Ib qho ntxiv, qhov yuav tsum tau ua rau kev txhawb nqa cov ntaub ntawv raw kuj ua raws li txoj kev txhim kho tam sim no ntawm Tuam Tshoj txoj kev lag luam tshuaj lom neeg. Yog tias lub lag luam txhawb txhawb cov ethylene thiab synthesis roj, tom qab ntawd Ethylene MMA tej zaum yog tus nqi sib tw MMA ntau lawm hom tam sim no. Ntawm tam sim no, kev txhim kho hom ntawm Tuam Tshoj txoj kev lag luam tshuaj lom neeg feem ntau yog kev pab txhawb cov chaw. Nyob rau hauv cov qauv no, cov qauv ethylene txuam nrog ethylene mma yuav dhau los ua kev tsom xam ntawm kev lag luam.